Home / 81,882.42-113,011.38-47,422.18

Finding the Fourth Proportional to 81,882.42, 113,011.38 and 47,422.18

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Solution

The fourth proportional to 81,882.42, 113,011.38 and 47,422.18 is: 65,450.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,882.42 : 113,011.38 = 47,422.18 : x
  2. Step 2: Convert to fraction form
    81,882.42/113,011.38 = 47,422.18/x
  3. Step 3: Cross multiply
    81,882.42x = 113,011.38 × 47,422.18
  4. Step 4: Simplify right side
    81,882.42x = 5,359,246,004.41
  5. Step 5: Solve for x
    x = 5,359,246,004.41/81,882.42
  6. Step 6: Final answer
    x = 65,450.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.